Respuesta :

Answer:

2 m/s

Explanation:

Velocity is a vector quantity that is given by:

[tex]v=\frac{d}{y}[/tex]

where

d is the displacement of the object (a vector indicating its change in position)

t is the time elapsed

Note that since velocity is a vector, it has both a magnitude and a direction (the same as the displacement).

For the toy train in this problem, we have:

d = 40 m (displacement)

t = 20 s (time elapsed)

So, its velocity is:

[tex]v=\frac{40}{20}=2 m/s[/tex]